Orthogonal Frequency Division Multiplexing (OFDM) is an efficient modulation format used in modern wireless communication systems including 5G. OFDM combines the benefits of Quadrature Amplitude Modulation (QAM) and Frequency Division Multiplexing (FDM) to produce a high-data-rate communication system .
Read moreHow is OFDM used?
Orthogonal frequency division multiplexing (OFDM) is a modulation technique that is used in several applications ranging from cellular systems (3GLTE, WiMAX), wireless local area networks (LANs), digital audio radio, underwater communications, and even optical light modulation .
Read moreWhich multiplexing technique is used in LTE?
LTE uses the popular orthogonal frequency division multiplex (OFDM) modulation scheme. It provides the essential spectral efficiency to achieve high data rates but also permits multiple users to share a common channel.
Read moreHow does OFDM transmit data?
In OFDM, multiple closely spaced orthogonal subcarrier signals with overlapping spectra are transmitted to carry data in parallel . Demodulation is based on fast Fourier transform algorithms.
Read moreWhy LTE uses OFDMA for downlink and SC-FDMA for uplink?
This is useful for LTE since it makes possible to exploit frequency dependence scheduling . For instance, it would be possible to exploit the fact that user 1 might have a better radio link quality on some specific bandwidth area of the available bandwidth.
Read moreWhat is meant by OFDM?
Glossary Term: OFDM Definition. Orthogonal Frequency Division Multiplexing : A method for multiplexing signals which divides the available bandwidth into a series of frequencies known as tones. Flarion uses the 5GHz channel and divides each channel into 400 discrete tones (each at slightly different frequency).
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